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The computer not work inpite of the power supply is very good?

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Test all leads that attach to your hard drive including electrical extensions SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure dust free connections and are not faulty or just replace them they could be faulty


make sure all leads that are attached to your drives dvd\cd have secure connections and are not faulty or just replace them they could be faulty


even something as small as an electrical extension or a faulty fan lead can cause you problems computer needs all of the data and power to travel through every working device and to have an end for a computer to be able work properly


a motherboard and a hard drive any leads between them will fail before your motherboard or your hard drive check all electrical extensions make sure they are securely seated even the cd/dvd drives need to have current go through make sure these devices are working

might be getting hot

check the CPU make sure it has thermal paste and dust free secure seating


also check your computer ram modules and cmos battery make sure they are dust free and securely seated some motherboards cmos batteries are soldered in

also clean your computer of dust
hope this helps you

Posted on Feb 21, 2012

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1 Answer

Computer won't turn on.


There must be a problem with your power switch on your computer casing, or motherboard or power supply.

Detach your power supply and try this, to check if your power supply really works. If the auxiliary fan will turn, your power supply is good
25627818-lfqggqo5gl3n2v4xynrvsb5u-5-0.jpg Testing your power supply and motherboard as seen on photo
25627818-lfqggqo5gl3n2v4xynrvsb5u-5-2.jpg If the cpu cooling fan and power supply did not turn the fan, but you have checked already the power supply that is working then you can conclude that your motherboard is need to be replace. But the power supply and motherboard and working, meaning to say your computer casing need to be replace or try fixing the contact of the switches attach to your casing.

Have a good day.

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How do you test a Bestec power supply


Hi,
I assume that your power supply was working before and am not sure if it is the power supply that is faulty on your computer or not. Testing a power supply that is connected to a computer is quite easy. All you have to do is try to turn your computer on. See if there is a small light available on your motherboard. This small LED is called the flea light. If there is try to eject the optical drive (CD or DVD drive) on your computer. If the tray ejects, then your power supply is good. If it didn't then it does not supply enough power. If there are no light at all in your computer, then you definitely have a fully busted power supply.
Please do update me on what happened here.

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Computer went of


if your computer is went off first you check its power cable .its battery if working in good then you check its power button its properly working push properly
if you have desktop computer check its power supply open its atx power connecter 24/pin in pin you green or black short it if supply fan on its mean your supply is oky
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its check with meter
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1 Answer

My computer went blank when turning it on


1) Computer isn't working, due to the Processor isn't working, due to a bad Power Supply.
Weak voltage power rail.

Enough power perhaps to light LED lights, and maybe spin fans, but not enough power to turn the Processor on.

Computer Power Supply's are rated in Wattage.
Volts times Amperes = Watts.
(Average computer power supply in a fairly new computer, is rated at around 300 Watts)

A) ALL of the LED lights combined, use less than 1 Watt of power.
B) EACH fan uses 2 to 3 Watts.
C) A typical Processor may use 51 to 125 Watts.
Depends on what Processor it is.

Power Supply with a weak voltage power rail, can have enough power to light LED lights, spin fans, but not enough to turn the Processor on.

Solution?
Test the voltages of the Power Supply,

Or, use a KNOWN to be good Power Supply, that has the correct amount of power cables, the right kind of power cables, the correct size, and shape of the case, and enough Wattage, for a test unit..

A bad Power Supply is one of the leading causes of computer failure.

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1 Answer

Power button not working. computer won't turn on. I got a light on, on the mother board but computer won't turn on


This is usually caused by either a faulty power supply or a dirty switch. You can find out if it's the switch by pulling the wires off the motherboard where the power switch plugs in, and with the power supply plugged in, carefully short across the two pins. If the computer doesn't start, that rules out the power switch. The other likely culprit is the power supply. If you can get ahold of a different power supply, try hooking it up and power up the computer. If that daesn't work, chances are that your motherboard is shot. Good luck.

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1 Answer

I purchased a Sparkle SPI270LE power supply as a replacement for a 160W power supply in my HP Pavilion s3220n PC. On installation, the unit would not power up. All connections were hooked up correctly. I...


These power supplies can be tough to test without a bonifide genuine load tester made for these power supplies. Switching power supplies seem to need a load in order to operate. If you have everything plugged in including your hard drives and it still doesnt work then it is likely defective. I have a apparently good power supply that decided to do the same thing to me in a working machine. I swapped out the power supply and it worked again.
Sometimes new power supplies can be no good. Switching power supplies can be somewhat fragile. The newer the power supply the more fragile they seem these days.

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My gateway desktop PRB 510S, if I turn it off and unplug it or electricity goes off, the computer wont start back again. Wont do anything. No lights no fan, nothing. Then 5 to 10 minutes after I turn it on...


Try connecting a different power supply to it. If the same situation repeats, then it's an internal (motherboard) problem. If the problems go away, then the power supply needs to be replaced.

6 years... I'm surprised the PSU even lasted that long! The power supply is the cheapest part of the PC and usually one of the first parts to fail. Don't worry, a replacement power supply is not too expensive. Good luck!

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NEC 42


hold down inpit buton and power up the tv.It will erase memory for faults.

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1 Answer

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The power supply is fried partially, or the motherboard went poof.

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1 Answer

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first i suggest to check your power unit

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